Yesterday Google introduced Keep, the new mobile and Web-based note-storing service that looks to take aim at products like Evernote. Boasting a simple, easy-to-use interface, Keep will work with Google Drive so that all notes are synced across different platforms. Users can edit their notes from either their phone or the Web and the information will be saved everywhere. You can also use voice dictation and photos to help enhance each note you take.

The BlackBerry Store has topped 100,000 apps, 30,000 of which were just added in the last seven weeks. The milestone arrives just in time for the new Z10 to land on store shelves. Notable apps to hit the store include offerings from Kindle, CNN, OpenTable, Skype, and Viber among others. The store has been criticized in the past for a lack of software, so this should help ease those worries. BlackBerry still has a long uphill battle ahead of it though, as Windows Phone 8 slowly begins to gain popularity, all behind of course, Android and iOS.

Speaking of app stores, Google Play might be getting a major overhaul pretty soon. Screenshot photos have surfaced on android enthusiast site Droid Life of what's being called Google Play 4.0. They show a much sleeker interface and simplistic theme throughout, though it's not totally confirmed that this is in fact the new store. We'll update you on the latest once we get word!

Well, we might as well continue today's mobile app-themed show with news that Pandora has now hit Windows Phone 8. The big news here is that the app will be free and stay ad-free for a limited time. New adopters will get all of the premium free-bee features, including unlimited streaming. Those perks will end in 2014, when it will go back to the $4 a month and free ad-supported models.

And finally, YouTube has just announced a major milestone of 1 billion monthly users. This is crazy. Put it like this: if YouTube were a country it'd be the third largest on the planet, behind China and India. That's pretty impressive. So why the recent jump in traffic? It's because of the number of multiscreen users, those of us who consume YouTube not just on our computer screen but also our phones and tablets. So why not join the fun and check out our YouTube channel at youtube.com/cnet.

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Jeff is a host for CNET video and is regularly featured on CBS and CBSN. He founded the site's longest-running podcast, The 404, and also writes the site's tech comic, Low Latency. He is CNET's senior gaming editor and has an unhealthy obsession with ice hockey and pinball.
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